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New South Wales · Postcode 2530
Marshall Mount postcode and suburb data
New South Wales · Phone area code 02 · 87 km from Sydney
Suburb snapshot
Marshall Mount at a glance vs NSW
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against NSW
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Marshall Mount ranks: household income is in the top 25% of NSW suburbs.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Marshall Mount vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Marshall Mount | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $2,175 +NSW | $1,931 | $1,836 |
| Rent/wk | $375 -NSW | $445 | $390 |
| Mortgage/month | $2,167 ≈NSW | $2,247 | $1,958 |
| Median age | 40 | 45.0 | 45.0 |
| SEIFA decile | 8/10 +NSW | 6.0/10 | 6.0/10 |
| Unemployment | 5.1% ≈NSW | 5.0% | 5.0% |
Green pill = at least 10% above the NSW average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Marshall Mount is a locality 87 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2530. It falls within the Illawarra region. The local government area is Wollongong.
According to the 2021 Census, Marshall Mount has a population of 177 with a median age of 40. The median weekly household income is $2,175, above the NSW average. The unemployment rate is 5.1%. The Indigenous population is 3 (1.7% of residents).
Housing in Marshall Mount includes a median weekly rent of $375, median monthly mortgage repayment of $2,167, with 53 total dwellings. Housing costs in the area sit below the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 76.9% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Marshall Mount scores in decile 8 out of 10, which is above the national average.
Marshall Mount is part of the Dapto - Port Kembla statistical area in New South Wales.
Marshall Mount details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2530 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 177 |
| Median Age | 40 years |
| Median Household Income (Census 2021) | $2,175/week |
| Median Personal Income (Census 2021) | $840/week |
| Median Weekly Rent (Census 2021) | $375 |
| Median Monthly Mortgage (Census 2021) | $2,167 |
| Average Household Size | 3 persons |
| Area | 11.2 km² |
| Population Density | 16/km² |
| Total Dwellings | 53 |
| Australian Citizens | 92.7% |
| Indigenous Population | 3 (1.7%) |
| Unemployment Rate | 5.1% |
| SEIFA IRSAD Decile | 8/10 (above average) |
| Latitude | -34.545 |
| Longitude | 150.736667 |
| Distance from Sydney | 87 km |
| Region (SA4) | Illawarra |
| Area (SA3) | Dapto - Port Kembla |
| Local Government | Wollongong |
| Federal Electorate | Whitlam |
| State Electorate | Wollongong |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 30 (16.9%) |
| 15–24 years | 22 (12.4%) |
| 25–44 years | 38 (21.5%) |
| 45–64 years | 43 (24.3%) |
| 65+ years | 33 (18.6%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 17 (9.6%) |
| Diabetes | 13 (7.3%) |
| Asthma | 9 (5.1%) |
| Heart Disease | 9 (5.1%) |
| Cancer | 6 (3.4%) |
| Lung Condition | 5 (2.8%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 0 (0.0%) |
| 1 vehicle | 13 (28.9%) |
| 2 vehicles | 12 (26.7%) |
| 3+ vehicles | 20 (44.4%) |
Suburbs Near Marshall Mount
Same Postcode (2530)
More Marshall Mount Data
Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.